Numerical Simulation Study of PM2.5 Diffusion and Distribution in Building Cluster Microenvironment

Abstract In order to improve the quality of the micro-environment of the architectural complex and ensure that residents enjoy a healthy and comfortable living experience, this paper uses Fluent simulation software to simulate the wind environment under the three common layouts of the architectural complex and the diffusion status of PM2.5. On this basis, green trees are added around the pollution sources to compare and analyze the adsorption and blocking effect of green trees on particulate matter. The results showed that after the addition of green trees, the wind environment of the community was optimized, and the concentration of PM2.5 also decreased significantly. These results provide a reference for improving the micro-environment air quality of the building complex.